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| gpklos |
 Posted: Tue Nov 07, 2006 12:45 pm Post subject: maxumsgs relationship to LOGLOAD parm on zos. |
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Centurion
Joined: 24 May 2002
Posts: 108
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I was wondering a couple of things. Is the maxumsgs parameter the maximum number of messages put/get before a commit is required, within EACH application(program), or across all programs running at once? Also our zos logload is set to 500000, but our maxumsgs is set to 10000. Exactly how do the two of them relate or affect each other? I was told in an etr from IBM that the logload controlled how many messages could be put/get before a commit needed to be done.
Thanks,
Gary |
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| jefflowrey |
| Posted: Tue Nov 07, 2006 1:09 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Is it a parameter on the queue? on the queue manager? on a connection?
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I am *not* the model of the modern major general. |
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| gpklos |
| Posted: Tue Nov 07, 2006 2:55 pm Post subject: |
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Centurion
Joined: 24 May 2002
Posts: 108
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| It is a parameter on the queue manager. LOGLOAD is in the parms for the queue manager on the mainframe. |
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| jefflowrey |
| Posted: Tue Nov 07, 2006 3:30 pm Post subject: |
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Grand Poobah
Joined: 16 Oct 2002
Posts: 19981
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Then it seems reasonable that it applies to the entire queue manager, doesn't it?
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I am *not* the model of the modern major general. |
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| jlamond |
| Posted: Fri Nov 10, 2006 5:36 am Post subject: |
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Voyager
Joined: 28 May 2002
Posts: 94
Location: Paris
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Houla,
These are two different thing.
First maxumsgs apply to one thread or if you prefer one transaction or prgram (one transaction within CICS, or program while from a batch process, one channel instance if we talk about the xxxxCHIN, etc.). So if you do have large batch process that only issue implicit commit (stop run), you should check the number of put and get they do before 'end of job'.
Now 'logload' is something else related to when MQSeries synchronise log files and pagesets. Thsi value is realy based upon your activity... IBM are now saying that 500 000 is a good value for production system. But this also depend on your daily activity...
Best regard,
Jean-Marc
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Jean-Marc |
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| hopsala |
| Posted: Fri Nov 10, 2006 6:54 am Post subject: |
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Guardian
Joined: 24 Sep 2004
Posts: 960
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I concur what jlamond here said and add: these parameters are not to be trifled with; read about them in IBM lit and search for them here, there is much to learn....
I will also mention that the LOGLOAD parameter is the number of Commits made before a checkpoint is issued; look it up. |
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